Abstract: The present invention provides a method for managing memory space in an electronic device including: selecting a candidate page from a first memory space for swapping the candidate page out of the first memory space into the second memory space; compressing the candidate page to obtain a first compressed page and a first hash value of the first compressed page; performing a comparison using the first hash value of the first compressed page and the hash values of the pages stored in a second memory space to find whether the pages have the same content as the first compressed page or the candidate page; and if a page is found to have the same content as the first compressed page or the candidate page, mapping a virtual address of the first compressed page or the candidate page to the found page.

Abstract: The present invention provides a method for managing memory space in an electronic device including: selecting a candidate page from a first memory space for swapping the candidate page out of the first memory space into the second memory space; compressing the candidate page to obtain a first compressed page and a first hash value of the first compressed page; performing a comparison using the first hash value of the first compressed page and the hash values of the pages stored in a second memory space to find whether the pages have the same content as the first compressed page or the candidate page; and if a page is found to have the same content as the first compressed page or the candidate page, mapping a virtual address of the first compressed page or the candidate page to the found page.

Abstract: Techniques and implementations pertaining to a heterogeneous swap space with dynamic thresholds are provided. A technique may provide a list of a plurality of swap areas in a heterogeneous swap space. The swap areas may include at least two swap areas that are different from each other in one or more characteristics. The technique may also compute a dynamic threshold associated with a page in need of swapping and determine a priority level of the page in need of swapping based on the dynamic threshold. The technique may further select one of the swap areas from the list of swap areas for the swapping of the page in response to a determination of the priority level of the page.